Michael M. de Leon is a licensed architect and a cartoonist/graphic artist, both by profession and by passion. His work experiences came from various architectural offices and animation studios. He is presently employed at the Manila Bulletin Publishing Corporation, where his comic strip "Sisiw" is published every Sunday.

He co-founded DECOworx Design and Construction [formerly 4.Worx Design & Build], at his home studio in Quezon City, Philippines.